[SPARK-20741][SPARK SUBMIT] Added cleanup of JARs archive generated by SparkSubmit

## What changes were proposed in this pull request?

Deleted generated JARs archive after distribution to HDFS

## How was this patch tested?

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: Lior Regev <lioregev@gmail.com>

Closes #17986 from liorregev/master.